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Finding the Fourth Proportional to 624,612.18, 861,964.63 and 338,132.06

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Solution

The fourth proportional to 624,612.18, 861,964.63 and 338,132.06 is: 466,622.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,612.18 : 861,964.63 = 338,132.06 : x
  2. Step 2: Convert to fraction form
    624,612.18/861,964.63 = 338,132.06/x
  3. Step 3: Cross multiply
    624,612.18x = 861,964.63 × 338,132.06
  4. Step 4: Simplify right side
    624,612.18x = 291,457,870,833.88
  5. Step 5: Solve for x
    x = 291,457,870,833.88/624,612.18
  6. Step 6: Final answer
    x = 466,622.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.